Peak interpolation method for optical or magnetic disk drive...

Details Peak interpolation method for optical or magnetic disk drive... Peak interpolation method for optical or magnetic disk drive...

G - Physics

11

B

G11B 20/10 (2006.01)

Patent

CA 2335188

Presented is a digital signal processing method for accurate detection of position and amplitude of digitized analog signals coming out of optical or magnetic pickup heads The least-square parametric fit of a second-or fourth-degree polynomial curve to 4 or more data points at a time, and minimization of the sum of square residuals allow for precise determination of peak top position and amplitude for the purpose of recording quality diagnostics. The method has been proven very reliable and noise-resistant.

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